The bfd all-interfaces command sets BFD session parameters.
The undo bfd all-interfaces command restores BFD session parameters to default values.
By default, the minimum intervals for receiving and sending BFD packets are 1000 ms and the detection time multiplier is 3.
Product |
Support |
|---|---|
S5720-EI, S5720-HI, S5720I-SI, S5720S-SI, S5720-SI, S5735-S, S5735S-S, S5735-S-I, S5730-HI, S5730S-EI, S5730-SI, S5731-H, S5731-S, S5731S-H, S5731S-S, S5732-H, S6720-EI, S6720-HI, S6720S-EI, S6720S-SI, S6720-SI, S6730-H, S6730S-H, S6730-S, and S6730S-S |
Supported |
S2720-EI, S5720-LI, S5735-L, S5735S-L, S5735S-L-M, S5720S-LI, S6720-LI, and S6720S-LI |
Not supported |
bfd all-interfaces { min-rx-interval min-receive-value | min-tx-interval min-transmit-value | detect-multiplier detect-multiplier-value } *
undo bfd all-interfaces { min-rx-interval [ min-receive-value ] | min-tx-interval [ min-transmit-value ] | detect-multiplier [ detect-multiplier-value ] } *
| Parameter | Description | Value |
|---|---|---|
| min-rx-interval min-receive-value | Specifies the minimum interval for receiving BFD packets from the peer. |
The value is an integer that ranges from 100 to 1000, in milliseconds.
|
| min-tx-interval min-transmit-value | Specifies the minimum interval for sending BFD packets to the peer. |
The value is an integer that ranges from 100 to 1000, in milliseconds.
|
| detect-multiplier detect-multiplier-value | Indicates the local detection multiplier. |
The value is an integer that ranges from 3 to 50. The default value is 3. |
Usage Scenario
The priority of BFD configured on an interface is higher than that configured for a RIP process. If BFD is enabled on an interface, BFD sessions are established using the BFD parameters set on the interface.
Actual interval at which BFD packets are transmitted on the local device = Max { transmit-value on the local device, receive-value on the peer}.
Actual interval at which BFD packets are received on the local device = Max { transmit-value on the peer, receive-value on the local device}.
Local BFD detection time = Actual interval at which BFD packets are received on the local device x detect-multiplier-value on the peer.
Prerequisites
BFD has been enabled on all the interfaces using the bfd all-interfaces enable command in the RIP view.